package com.heima.article.service.impl;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.controller.v1.ArticleHomeController;
import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.service.ApArticleService;
import com.heima.article.service.ArticleFreemarkerService;
import com.heima.common.constants.ArticleConstants;
import com.heima.model.article.dtos.ArticleDto;
import com.heima.model.article.dtos.ArticleHomeDto;
import com.heima.model.article.pojo.ApArticle;
import com.heima.model.article.pojo.ApArticleConfig;
import com.heima.model.article.pojo.ApArticleContent;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmDownOrUpDto;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.sql.Wrapper;
import java.util.Date;
import java.util.List;

@Service
@Transactional
@Slf4j
public class ApArticleServicelmpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {

    @Autowired
    private ApArticleMapper apArticleMapper;

    public static final int MAX_PAGE_SIZE = 50;


    /**
     * @description:加载文章列表
     * @author: sunhaonan
     * @param:dto
     * @param:type 1 加载更多  2 加载最新
     * @return:
     **/
    @Override
    public ResponseResult load(ArticleHomeDto dto, Short type) {
        //参数检验
        //1、分页条数检验
        Integer size = dto.getSize();
        if(size == null || size == 0){
            size = 10;
        }
        //分页的值不超过50
        size = Math.min(size,MAX_PAGE_SIZE);

        //校验参数 type
        if(type != ArticleConstants.LOADTYPE_LOAD_NEW && type != ArticleConstants.LOADTYPE_LOAD_MORE){
            type = ArticleConstants.LOADTYPE_LOAD_MORE;
        }

        //频道参数校验
        if(StringUtils.isBlank(dto.getTag())){
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }

        //时间校验
        if(dto.getMaxBehotTime() == null)dto.setMaxBehotTime(new Date());
        if(dto.getMinBehotTime() == null)dto.setMinBehotTime(new Date());
        List<ApArticle> articlesList = apArticleMapper.loadArticleList(dto, type);
        return ResponseResult.okResult(articlesList);
    }

    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;
    @Autowired
    private ApArticleContentMapper apArticleContentMapper;
    @Autowired
    private ArticleFreemarkerService  articleFreemarkerService;

    /**
     * @description:保存文章
     * @author: sunhaonan
     * @param:dto
     * @return:
     **/
    @Override
    public ResponseResult saveArticle(ArticleDto dto) {

        //1、检查参数
        if(dto == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        ApArticle apArticle = new ApArticle();
        BeanUtils.copyProperties(dto,apArticle);

        //2、判断是否存在id
        if(dto.getId() == null){
            //2.1、不存在id 保存 文章 文章配置 文章内容
            //保存文章
            save(apArticle);

            //保存配置
            ApArticleConfig apArticleConfig  = new ApArticleConfig(apArticle.getId());
            apArticleConfigMapper.insert(apArticleConfig);

            //保存文章内容
            ApArticleContent apArticleContent = new ApArticleContent();
            apArticleContent.setArticleId(apArticle.getId());
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.insert(apArticleContent);
        }else {
            //2.2、存在id 修改 文章 文章内容
            //修改文章
            updateById(apArticle);

            //修改文章内容
            ApArticleContent apArticleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, dto.getId()));
            apArticleContent.setContent(dto.getContent());
            apArticleContentMapper.updateById(apArticleContent);
        }

        //异步调用 生成静态文件上传到minIO中
        articleFreemarkerService.buildArticleToMinIO(apArticle,dto.getContent());


        //3、结果返回文章的id
        return ResponseResult.okResult(apArticle.getId());
    }

    /**
     * 更新上下架
     *
     * @param msg msg
     * @return {@link ResponseResult}
     */
    @Override
    public ResponseResult updateIsDown(String msg) {
        WmDownOrUpDto wmDownOrUpDto = JSON.parseObject(msg, WmDownOrUpDto.class);
        ApArticleConfig apArticleConfig = new ApArticleConfig(wmDownOrUpDto.getArticleId());
        apArticleConfig.setIsDown(wmDownOrUpDto.getIsDown());
        LambdaUpdateWrapper<ApArticleConfig> set = Wrappers.<ApArticleConfig>lambdaUpdate()
                .eq(ApArticleConfig::getArticleId, apArticleConfig.getArticleId())
                .set(ApArticleConfig::getIsDown, apArticleConfig.getIsDown());
        apArticleConfigMapper.update(apArticleConfig, set);
        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }
}
